Power Systems A 3-phase transmission line has its conductors at the corners of an equilateral triangle with side 3m. The diameter of each conductor is 1.63 cm. The inductance of the line per phase per km is 1.182 mH 1.093 mH 1.232 mH 1.043 mH 1.182 mH 1.093 mH 1.232 mH 1.043 mH ANSWER DOWNLOAD EXAMIANS APP
Power Systems A buchholz relay is used for protection of a transformer against all internal faults nether 1 nor 2 protection of a transformer against all external faults both 1 and 2 protection of a transformer against all internal faults nether 1 nor 2 protection of a transformer against all external faults both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 3750 kW 6000 kW 7500 kW 3000 kW 3750 kW 6000 kW 7500 kW 3000 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Nuclear fission means breaking up of nuclear of heavy atoms into nearly equal parts. moderator. graphite. combination of two light nuclei. breaking up of nuclear of heavy atoms into nearly equal parts. moderator. graphite. combination of two light nuclei. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Characteristics of arc quenching medium is/are Non flammable All of these High thermal conductivity High dielectric strength Non flammable All of these High thermal conductivity High dielectric strength ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 17.32 kV/phase 34.64 kV/phase 41.075 kV/phase 82.15 kV/phase 17.32 kV/phase 34.64 kV/phase 41.075 kV/phase 82.15 kV/phase ANSWER DOWNLOAD EXAMIANS APP
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